Cylinder for fodder-shredders



(No Model.)

J. DICK. CYLINDER FOR FODDER SHREDDERS.

No. 596,059. Patented Dec. 28, 1897.

UNITED STATES PATENT FFICE.

JOSEPH DICK, OF CANTON, OHIO.

CYLINDER FOR FODDER-SHREDDERS.

SPECIFICATION forming part of Letters Patent No. 596,059,dated December 28, 1897.

Application filecl January 19, 1897. Serial No. 619,785. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH DICK, a citizen of the United States, and a resident of the city of Canton, county of Stark, State of Ohio, have invented a new and useful Improvement in Cylinders for Fodder-Shredders, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, making part of this specification.

My invention relates to improvements in cylinders or heads for fodder shredders and cutters; and it consists of certain features of construction and combination of parts by which the knives or cutters are held firmly in position when in use and are also capable of being removed for sharpening or other purposes without injury to the machine, as will be hereinafter more fully set forth and described.

Figure 1 is a perspective view of the cylinder or head, showing the knives in position. Fig. 2 is a sectional view of the cylinder or head. Fig. 3 isan end View of the cylinder or head. Fig. 4 is a side view of one of the knives. Fig. 5 is a perspective view of one of the segmental spacing-blocks.

Similar letters refer to similar parts of the several drawings.

A is the cylinder or head, which may be made of cast metal and either cast or keyed upon the shaft 13, adapted to be journaled in or upon any of the wellknown forms of fodder-cutter frames. The cylinder or head A is provided with a series of alternating longitudinal dovetail keyways or grooves C, out or cast in the periphery thereof, so arranged as to length that the knives when in position will form a series of alternating shredders or cutters, shredding or cutting the fodder into the desired widths or lengths.

The knives D are formed of sheet metal and are, as shown, practically trapezoidal in form, being larger at their base than at the top, and adapted to be slipped into and conform to the shape of the longitudinal keyways or grooves O and spaced apart by the segmental blocks E.

The longitudinal grooves, knives, and segmental blocks may be made of any desired shape so long as they are made either larger at the base or intermediate the base and the periphery of the cylinder or head, so as to form a shoulder by which the knives are held in position.

In the cylinder or head A there is countersunk a short distance from the outer end of each groove a nut F and a hole drilled from the outer edge of the cylinder or head to and connecting with the countersunk nut. Around and over the outer ends of the cylinder or head there is placed a retaining or clamping block H, corresponding in diameter to the cylinder or head. The bolts G are then screwed down into engagement with the nuts F, locking the knives and segmental blocks in position.

In case it should be desired to remove any one of the knives for repair or sharpening the bolts are removed from the end of the cylinder or head next to the groove from which the knife is desired to be removed and the whole series of knives in said groove may then be removed and again replaced in position with- I out destroying or impairing the usefulness of any portion of the cylinder or head.

Heretofore it has been customary to make the cutting or shredding knives either of the well-known saw shape or to rivet or Otherwise attach them to projecting portions of the cylinder or head. This method has not only been expensive, but has made the knives hard to retain in position and exceedingly difficult of removal for the purposes of repair. In my device all these difliculties are readily overcome, and in addition the machine is adapted to be interchangeable-that is, the shredding-knives may be removed and cutting-knives substituted therefor and the machine converted into a cutter, or vice versa. In operation the cylinder or head mounted upon its shaft is journaled in the ordinary manner in any of the well-known forms of frames and is driven in the usual manner. The cylinder or head being revolved and the knives being so adjusted in their relation to each other as to form a series of cutters or shredders, the material is finely shredded or out.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is- The combination with a cylinder for foddershredders, said cylinder having grooves the side walls of which are undercut and one end being closed and the other end being open, the open end of one groove alternating with the closed end of the adjacent groove, said grooves having near their open ends inlaid nuts the apertures of which communicate with longitudinal apertures extending from the ends of the cylinder, knives having slanting edges to correspond with the undercut grooves, spacing-blocks having slanting sides to correspond with said grooves, said knives and blocks slipped into said grooves from their open ends and the knives of one groove alternatin g with those of the adjacent grooves, end plates and bolts inserted through the end 15 plates the longitudinal apertures and enga ing the nuts, substantially as described.

In testimony whereof I have hereunto set my hand this 16th day of January, A. D. 1897.

JOSEPH DICK.

Witnesses:

CHAS. A. MILLER, CHAs. M. BALL. 

